How do I include a page in a site but not have it show up on the main top left navigation.

There is an option to "only show when...."  however there is jack in the way of information on how to just say "show never" or "only show when visible" (i.e. link a breadcrumb trail)

In this case I want to call the interface directly from its URL based on other conditions (I have 20-30 such pages which I don't want crowding out the top navigation)

I only want the top navigation menu to show maybe 2-3 pages, not 50. But it seems every interface gets added to the top navigation whether I want it there or not. 

How do I set this up?

  Discussion posts and replies are publicly visible